The Command Prompt simplifies editing file extensions for multiple files at once, as long as they're in the same folder. Use asterisks (*) to avoid specifying each file by name.

Changing file formats in Windows 11 can be done via File Explorer for quick swaps. Command Prompt offers a trickier method to alter file extensions, but it must be done carefully.

Normally, if you change a file’s extension in Windows, it doesn’t do anything positive. It just makes the file open in the wrong programs that can’t decode what’s inside.

On Windows 11, you can change the format of a file in multiple ways through File Explorer, Command Prompt, and from a compatible application. In this guide, I'll show you how.